CVE catalog

CVE-2026-59878

Improper Input Validation vulnerability in Apache ActiveMQ AMQP, Apache ActiveMQ, Apache ActiveMQ All. A remote unauthenticated peer that can reach an exposed AMQP NIO connector can trigger denial-of

[CVE catalog]

Severity: Medium
Published: Jul 27, 2026, 10:00:00 PM UTC
Source: [NVD] · [CVE record]
EPSS: 0.78% · Oct 25, 2026

Improper Input Validation vulnerability in Apache ActiveMQ AMQP, Apache ActiveMQ, Apache ActiveMQ All. A remote unauthenticated peer that can reach an exposed AMQP NIO connector can trigger denial-of-service behavior by sending a frame size value. This cause the NIO threads to die and if done rapidly enough can lead to exhaustion of the NIO thread pool denying service to other connections. This issue affects Apache ActiveMQ AMQP: before 5.19.9, from 6.0.0 before 6.2.8; Apache ActiveMQ: before 5.19.9, from 6.0.0 before 6.2.8; Apache ActiveMQ All: before 5.19.9, from 6.0.0 before 6.2.8. Users are recommended to upgrade to version 5.19.9, 6.2.8, or 6.3.0 which fixes the issue.

Vulnerable and fixed packages

Distribution-reported package versions and fixes. These do not depend on matching against the OpenFactory package catalog.

Distribution	Package	Release	Version	Status
Debian	activemq	sid	`5.17.6+dfsg-2`	vulnerable
Debian	activemq	trixie	`5.17.6+dfsg-2`	vulnerable
Debian	activemq	bookworm	`5.17.2+dfsg-2+deb12u1`	vulnerable
Debian	activemq	bookworm-security	`5.17.2+dfsg-2+deb12u1`	vulnerable

Fixed-version evidence

Distribution	Package	Type	Release	Fixed version	Urgency	Origin	Bugs
Debian	activemq	source	sid	`(unfixed)`	not yet assigned	Not reported	[1144412]
Debian	activemq	source	trixie	`(unfixed)`	not yet assigned	Not reported	[1144412]
Debian	activemq	source	bookworm	`(unfixed)`	not yet assigned	Not reported	[1144412]

[Debian bug #1144412]

OpenFactory catalog packages

[Debian 12 (Bookworm)]

[activemq]Affected
Details (4)
- 5.17.2+dfsg-2+deb12u1 · all · bookworm
  Affected
  nvd · activemq · debian · bookworm; nvd · activemq · debian · 12
- 5.17.2+dfsg-2+deb12u1 · all · bookworm
  Affected
  nvd · activemq · debian · bookworm; nvd · activemq · debian · 12
- 5.17.2+dfsg-2+deb12u1 · all · bookworm-security
  Affected
  nvd · activemq · debian · bookworm; nvd · activemq · debian · 12
- 5.17.2+dfsg-2+deb12u1 · all · bookworm-security
  Affected
  nvd · activemq · debian · bookworm; nvd · activemq · debian · 12
[libactivemq-java]Affected
Source package: [activemq]
Details (4)
- 5.17.2+dfsg-2+deb12u1 · all · bookworm
  Affected
  nvd · activemq · debian · bookworm; nvd · activemq · debian · 12
- 5.17.2+dfsg-2+deb12u1 · all · bookworm
  Affected
  nvd · activemq · debian · bookworm; nvd · activemq · debian · 12
- 5.17.2+dfsg-2+deb12u1 · all · bookworm-security
  Affected
  nvd · activemq · debian · bookworm; nvd · activemq · debian · 12
- 5.17.2+dfsg-2+deb12u1 · all · bookworm-security
  Affected
  nvd · activemq · debian · bookworm; nvd · activemq · debian · 12

[Debian 13 (Trixie)]

[activemq]Affected
Details (2)
- 5.17.6+dfsg-2 · all · trixie
  Affected
  nvd · activemq · debian · 13
- 5.17.6+dfsg-2 · all · trixie
  Affected
  nvd · activemq · debian · 13
[libactivemq-java]Affected
Source package: [activemq]
Details (2)
- 5.17.6+dfsg-2 · all · trixie
  Affected
  nvd · activemq · debian · 13
- 5.17.6+dfsg-2 · all · trixie
  Affected
  nvd · activemq · debian · 13

Observed: Oct 23, 2026, 9:43:13 PM UTC

References

[CERT-Bund public advisories] · [Debian Security Tracker] · [FIRST EPSS] · [National Vulnerability Database (NVD)] · [OSV Package Vulnerability Database]